14 Commits

Author SHA1 Message Date
Jim Harris
f93bb8a32d Switch spdk_bdev_read/write arg order for length and offset.
This matches the general order (LBA start then LBA count) for
the NVMe API.

While here, fix a copy/paste error in a debug message (write
instead of writev).

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ice326af5d6025867dffed4d1f6c7b81fb9eba5eb
2016-09-14 10:51:25 -07:00
Jim Harris
72bb4b6171 scsi: always zero unused INQUIRY bytes up to 96 if allocated
Our SCSI translation layer only fills 4 version descriptors
meaning the last 30 bytes of the 96 byte standard inquiry
data format are not used.  Some compliance tests expect
the full 96 bytes to be returned, even if they are unused.
So zero the remaining bytes (up to 96) if those bytes were
allocated.

This fixes a regression introduced by recent commit d3b58c006.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Id61614b904b5dff39f034b7ba4da624be1b25bae
2016-09-09 07:57:41 -07:00
Jim Harris
d3b58c006f scsi: do not fill out more than allocation length for standard inquiry
The translation code currently cheats a bit - it allocates a full 4KB
buffer for any DATA_IN command that is not a READ, and then the
different SCSI commands that fall into this category (INQUIRY,
READ_CAPACITY, MODE_SENSE, etc.) can write as much data as they
want without having to worry about a buffer overrun.  Code higher
up the stack makes sure we only send the correct amount of data back
to the iSCSI initiator.

This patch fixes this behavior for standard INQUIRY (EVPD = 0).
Future patches will fix the behavior for other non-READ DATA_IN
commands, at which point we can remove the 4KB allocation and
only allocate the amount of data specified in the CDB.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: If5e4a10eeba9851e2d91cab71228d2fc2d5baad0
2016-09-08 09:34:49 -07:00
Ben Walker
ecb6e49d09 scsi: Include spdk/bdev.h from scsi_bdev.c
This compilation unit depends on bdev.h definitions, but
was only getting them due to #include ordering elsewhere.

Change-Id: I4fcbdb2582a40836bcabc3539cc558614fbfacfd
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-08-26 09:40:01 -07:00
Daniel Verkamp
d2ea70cafd iscsi: use spdk/endian.h functions
Switch from the non-portable <sys/endian.h> functions (htobeXX/beXXtoh)
to the SPDK endian conversion functions.

Change-Id: Id49b87f2e536c68f0d5d567e78e1990c0a37ef14
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-25 13:29:56 -07:00
Daniel Verkamp
98c8867e5a scsi: move spdk_strcpy_pad() into util/string.c
This will be useful outside of the SCSI code, so put it in the common
string utility file.

Also reorder the parameters so they match the order used in strncpy().

Change-Id: I9e25a59b64e4bedf04e5a96de463b1d8aa0ddac3
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-22 08:58:07 -07:00
Changpeng Liu
17dbcf58c1 scsi: fill BLOCK LIMITS VPD page filed with suitable value
Linux block layer driver will use the maximum transfer length field to
split IOs larger than this value. We should set the field according to
iSCSI target limitation.

Change-Id: I03ee35bb96f0949418bb976a6c8013f88622a324
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
2016-08-11 09:23:22 -07:00
Changpeng Liu
3c5eac6bfb scsi: return correct data length of VPD page 0xB1 and 0xB2
For VPD page 0xB1 and 0xB2, the scsi target did not return correct
value to the initiator, so return the length with correct value.

Change-Id: Ic17d804ca00d490fd6a2f833db5c9b73ce8dc160
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
2016-08-11 09:56:36 +08:00
Ben Walker
26350acc0a scsi: Fix integer size mismatch when setting lba
Change-Id: I25ce88006dbd073fb795046b80086237246a6ff5
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-08-05 16:08:01 -07:00
Daniel Verkamp
040c0193f4 bdev: change blocklen from uint64_t to uint32_t
This is the size of a logical block in bytes; 4 GB is more than plenty.

Also allows cleaning up casts to uint32_t in the SCSI translation layer.

Change-Id: I3ec2e2f41fd378f1a83f31aac25c46ef780f63e9
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-05 09:03:15 -07:00
Ben Walker
b91c6e0e4a scsi: Make OBJECT_SCSI_TASK public
Change-Id: Icb4a5532dffe671aaa8e2b1b619de17ead66d3b4
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-08-04 13:15:23 -07:00
Ben Walker
01d13145c9 scsi: Flesh out the public header file
The public header file was missing some required definitions.

Change-Id: Ic4f8028367b1e21ea00c02660ca36be28da54e37
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-08-03 09:47:28 -07:00
Ben Walker
e648950f89 bdev: Delete bdev_db
Combine the necessary functionality with the main bdev file.

Change-Id: I96d796bc87ac2a8688cdf1fd3c16d2a7c8aef730
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-08-02 09:08:51 -07:00
Daniel Verkamp
bd4ac74eaf scsi: import SCSI/blockdev translation layer
Change-Id: Ie96943f40ea8be4156d55bc5eeacc567743cf9d6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-01 10:35:01 -07:00